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1、如果是兩個長方形的長重合在一起,那麼所得的圖形周長是: (5+3)×2×2-5×2=22(分米) 2、如果是兩個長方形的寬重合在一起,那麼所得的圖形周長是: (5+3)×2×2-3×2=26(分米)
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